//
//  UINavigationController.swift
//  readtool
//
//  Created by wanjiading on 2016/12/3.
//  Copyright © 2016年 DAD. All rights reserved.
//

import UIKit

extension UINavigationController {

	
	/// 是否支持旋转
//    open override var shouldAutorotate: Bool {
////        return self.visibleViewController!.shouldAutorotate
//		return false
//    }
//	
//	/// 支持屏幕方向
//    open override var supportedInterfaceOrientations: UIInterfaceOrientationMask {
//		return .portrait
////        return self.visibleViewController!.supportedInterfaceOrientations
//    }
//
//	/// 默认屏幕方向
//	open override var preferredInterfaceOrientationForPresentation: UIInterfaceOrientation {
//		return .portrait
//	}
	
}
